CVE-2026-2863 is a path traversal vulnerability identified in the deleteFile method of the FileServiceImpl.java file within the feng_ha_ha ssm-erp and production_ssm software products. The flaw arises from insufficient validation or sanitization of file path inputs, enabling an attacker to traverse directories and delete files outside the intended scope. The vulnerability can be exploited remotely without user interaction and requires only low-level privileges, making it relatively easy to exploit. The products affected are distributed under two different names and use continuous delivery with rolling releases, complicating precise version identification and patching. Although the project was notified early, no official fix or response has been issued, and a public exploit is available, increasing the risk of exploitation. The CVSS 4.0 score is 5.3 (medium), reflecting network attack vector, low attack complexity, no authentication required, and limited impact on confidentiality but moderate impact on integrity and availability. This vulnerability could allow attackers to delete critical files, potentially disrupting ERP operations and causing data loss or service outages.

The primary impact of CVE-2026-2863 is on the integrity and availability of affected ERP systems. By exploiting the path traversal flaw, attackers can delete arbitrary files on the server, including configuration files, logs, or other critical data, potentially leading to system instability, denial of service, or loss of important business data. This can disrupt business operations, cause financial loss, and damage organizational reputation. Since the vulnerability can be exploited remotely without user interaction and requires only low privileges, it poses a significant risk especially in environments where the ERP system is exposed to untrusted networks. The lack of vendor response and patch availability increases the window of exposure. Organizations relying on these ERP products may face operational downtime and increased incident response costs if exploited.

1. Implement strict input validation and sanitization on all file path parameters, especially in the deleteFile function, to prevent directory traversal sequences such as '../'. 2. Employ application-level access controls to restrict file deletion operations to authorized users and limit the scope of deletable files to predefined directories. 3. Use web application firewalls (WAFs) with rules designed to detect and block path traversal attempts targeting the ERP system. 4. Monitor logs for suspicious file deletion requests or unusual access patterns indicative of exploitation attempts. 5. Isolate the ERP system within a segmented network zone to reduce exposure to untrusted networks. 6. Regularly back up critical ERP data and configuration files to enable recovery in case of malicious deletion. 7. Engage with the vendor or community to track any forthcoming patches or updates and apply them promptly once available. 8. Consider temporary compensating controls such as disabling the vulnerable deleteFile functionality if feasible until a patch is released.